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Finding the Fourth Proportional to 404,564.40, 606,044.70 and 354,700.80

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Solution

The fourth proportional to 404,564.40, 606,044.70 and 354,700.80 is: 531,348.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,564.40 : 606,044.70 = 354,700.80 : x
  2. Step 2: Convert to fraction form
    404,564.40/606,044.70 = 354,700.80/x
  3. Step 3: Cross multiply
    404,564.40x = 606,044.70 × 354,700.80
  4. Step 4: Simplify right side
    404,564.40x = 214,964,539,925.76
  5. Step 5: Solve for x
    x = 214,964,539,925.76/404,564.40
  6. Step 6: Final answer
    x = 531,348.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.